Re-enable the policy tests fixed by r145587

The policy setting crash has been fixed. Re-enable the tests.

TBR=mnissler@chromium.org
BUG=134560
TEST=

Review URL: https://chromiumcodereview.appspot.com/10692175

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@146230 0039d316-1c4b-4281-b951-d872f2087c98

chrome/test/functional/PYAUTO_TESTS

@@ -128,11 +128,6 @@
       '-policy.PolicyTest.testEnabledPlugins',
       # crbug.com/118123
       '-policy.PolicyTest.testExtensionInstallFromForceList',
-      # crbug.com/134560
-      '-policy.PolicyTest.testBlacklistPolicy',
-      '-policy.PolicyTest.testPolicyToPrefMapping',
-      '-policy_prefs_ui.PolicyPrefsUITest.testUserPoliciesShowBanner',
-      '-policy.PolicyTest.testSavingBrowserHistoryDisabled',
       # crbug.com/47935
       '-popups.PopupsTest.testBlockedPopupNotShowInHistory',
       # crbug.com/83827